Blue Life SPS HQI 150W 14000K Metal Halide Bulb is manufactured with built-in igniters (starters) that allow them to be used with any type of ballast. Blue Life SPS HQI 150W 14000K Metal Halide Bulb is specifically engineered to enhance the polyp extension, color, and growth of your corals. It is designed to replicate the beautiful shimmering light of your fish and coral's natural environment.